Keystone, SD

9:05 AM MDT on May 19, 2013 (GMT -0600)
Elev: 4564 ft
Lon: 103.4° W
Lat: 43.9° N
Source
Rapid Fire Updates™
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News
May Severe Outbreak: Day 1 Recap
May 19, 2013
See the tornado, damaging wind and large hail reports on our interactive map.
Tornado Hunt Captures Multiple Tornadoes in Progress
May 19, 2013
See images and video from the Plains as severe thunderstorms left their mark.
Tornado Warning Drought May End This Weekend
May 19, 2013
Parts of the Plains, Midwest have seen a startling absence of tornadoes.
Real-Time Updates: Severe Weather Outbreak
May 18, 2013
The latest breaking news, tornado warnings, photos and more.
64, Including Saudi Arabian Woman, Scale Mount Everest
May 18, 2013
More than five dozens climbers successfully scaled Mount Everest.
Flash Flooding Swamps Parts of Alabama
May 18, 2013
The photos, reports, and perspective behind flooding rain in parts of Alabama Saturday.
Active Volcano Captured in Stunning Photos
May 17, 2013
Indonesian-born and Qatar-based photographer Helminadia Ranford captured breathtaking photos of Mt. Bromo, an active volcano in East Java, Indonesia.
NASA: New Pump Resolves Big Space Station Leak
May 17, 2013
A spacewalk has repaired a leak on the International Space Station, NASA said.
Where Winter Won't End
May 18, 2013
Spring warmth has arrived in most of the U.S., except this state.
Storm Damage near Shreveport
May 16, 2013
Storm storms leave damage near Shreveport, Louisiana. See photos and tweets.
Texas Tornadoes: As They Happened
May 18, 2013
We walk through the full timeline of the Texas tornadoes on May 15, 2013.
By Man or Nature, Places That Will Never Be the Same
May 16, 2013
Where Earth has been changed forever.
Smaller Glaciers Boost Sea Level as Much as the Giants
May 16, 2013
Thousands of small glaciers, unconnected to continental-scale ice sheets, have dumped about 260 million tons of meltwater into the ocean annually between 2003 and 2009.
Deadly Texas Outbreak May Mark End of Tornado Drought
May 16, 2013
After months with record-low activity, the 2013 tornado season roared back with a vengeance on Wednesday as at least 10 twisters touched down across portions of north-central Texas, killing at least 6 and injuring dozens more.
Alaska Volcano Shoots Ash 15,000 Feet into Air
May 18, 2013
Steam and ash clouds are occasionally rising to 20,000 feet from an active Alaska volcano.
Mexico Volcano Registers More Seismic Activity
May 16, 2013
Seismic activity is continuing at the Popocatepetl volcano near Mexico City and authorities say they have readied shelters and identified evacuation routes in case they should be needed.
Cyclone Mahasen Weakens After Killing 45 in Bangladesh
May 16, 2013
Cyclone Mahasan weakened Thursday afternoon into a tropical storm and then dissipated, causing far less damage than had been feared as it passed over Bangladesh and spared Myanmar almost entirely, meteorological officials said.
Worldwide Cleanup Reveals Trashed Beaches (PHOTOS)
May 17, 2013
The Ocean Conservancy releases stunning photos from its recent international beach cleanup day.
Oldest Water on Earth Found Deep Underground
May 17, 2013
Finding the oldest water on Earth has implications for understanding life on Earth and maybe Mars.
Tornado-Ravaged Texas Town to Start Recovery
May 18, 2013
It's now time to move on in a Texas town wrecked by a massive twister.
More News Articles
Weather Summary
Kari Kiefer
Weather Underground Forecast for Sunday, May 19, 2013.

Severe thunderstorm activity will persist for the Plains on Sunday as a broad low pressure system continues trekking through the region. The system will move from the Northern Plains and into the Great Lakes, creating two frontal boundaries. The warm front associated with this system will extend eastward over the Great Lakes and into the Northeast, kicking up scattered showers and thunderstorms into Sunday night. At the same time, a cold front extends southward from this system which will move off the Central Rockies and into the Central and Southern Plains. Counter-clockwise flow around this broad system will pull moisture and energy into the Plains from the Gulf of Mexico. This will support moderate to heavy showers and thunderstorms in between these two fronts. This system has a history of severe thunderstorm development across the Northern and Central Plains, thus, there is a moderate risk of severe thunderstorm development with large hail, damaging winds, and multiple tornadoes. These severe thunderstorms will most likely develop across central and eastern Oklahoma, through eastern Kansas, and into western Missouri. A slight risk of severe storm development remains in effect from northern Texas, through southern Minnesota and Wisconsin on Sunday. At the same time, the back side of this system will continue spreading moisture over the Intermountain West and Rockies. This will trigger more showers with isolated thunderstorms over the region through Sunday evening.

Meanwhile in the East, a trough of low pressure slowly moves over the East Coast and maintains shower and thunderstorm activity for the Mid-Atlantic states through the Northeast.
Weather Underground Forecast for Sunday, May 19, 2013.

Severe thunderstorm activity will persist for the Plains on Sunday as a broad low pressure system continues trekking through the region. The system will move from the Northern Plains and into the Great Lakes, creating two frontal boundaries. The warm front associated with this system will extend eastward over the Great Lakes and into the Northeast, kicking up scattered showers and thunderstorms into Sunday night. At the same time, a cold front extends southward from this system which will move off the Central Rockies and into the Central and Southern Plains. Counter-clockwise flow around this broad system will pull moisture and energy into the Plains from the Gulf of Mexico. This will support moderate to heavy showers and thunderstorms in between these two fronts. This system has a history of severe thunderstorm development across the Northern and Central Plains, thus, there is a moderate risk of severe thunderstorm development with large hail, damaging winds, and multiple tornadoes. These severe thunderstorms will most likely develop across central and eastern Oklahoma, through eastern Kansas, and into western Missouri. A slight risk of severe storm development remains in effect from northern Texas, through southern Minnesota and Wisconsin on Sunday. At the same time, the back side of this system will continue spreading moisture over the Intermountain West and Rockies. This will trigger more showers with isolated thunderstorms over the region through Sunday evening.

Meanwhile in the East, a trough of low pressure slowly moves over the East Coast and maintains shower and thunderstorm activity for the Mid-Atlantic states through the Northeast.
More News Articles

Keystone Weather at a Glance

Updated 8:57 AM MDT
Elevation
4531 ft
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Now
Overcast
Overcast
Temperature
55.8 °F
Feels Like 55.8 °F
Wind(mph)
0.0
Sunrise / Set
5:23 AM
8:17 PM
Moon
Waxing Gibbous
Today
Thunderstorm 61 °F
T-storms
90% chance of precipitation
Tonight
Thunderstorm 46 °F
T-storms
80% chance of precipitation
Tomorrow
Rain Showers 52 | 46 °F
Rain Showers
90% chance of precipitation
Tuesday
Rain Showers 54 | 46 °F
Rain Showers
60% chance of precipitation
Wednesday
Chance of Rain 59 | 46 °F
Chance of Rain
60% chance of precipitation
Thursday
Chance of Rain 57 | 48 °F
Chance of Rain
40% chance of precipitation
Today is forecast to be Much Cooler than yesterday.
Conditions
Pressure
29.70 in
Visibility
6.0 miles
Clouds
Mostly Cloudy 2300 ft
Overcast 3000 ft
Moisture
Humidity
80%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KRAP 191452Z 33009KT 6SM BR BKN023 OVC030 13/12 A2973 RMK AO2 SLP055 60001 T01330117 58002
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Temperature
55.8 °F
56,55,55,55,55,55,55,55,54,55,55,55,55
Dew Point
50 °F
Wind
Speed / Dir
Calm
Wind Gust
2.0 mph
Health
UV
1 out of 16
Pollen
3.50 out of 12
Pollen Forecast
Air Quality
Not available.
Flu Activity
Sporadic
View Flu Map
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Source: BestForecast
Descriptive Forecast
Sunday
tstorms Overcast with thunderstorms and rain showers, then rain showers in the afternoon. High of 61F. Windy. Winds from the NNW at 15 to 30 mph with gusts to 35 mph. Chance of rain 90% with rainfall amounts near 0.9 in. possible.
Sunday Night
nt_tstorms Overcast with thunderstorms and rain showers, then rain showers after midnight. Low of 46F. Windy. Winds from the NNW at 25 to 30 mph with gusts to 40 mph. Chance of rain 80% with rainfall amounts near 1.0 in. possible.
Monday
rain Overcast with rain showers. High of 52F. Windy. Winds from the NNW at 25 to 40 mph. Chance of rain 90% with rainfall amounts near 0.7 in. possible.
Monday Night
nt_rain Overcast with rain showers. Low of 46F. Windy. Winds from the NNW at 25 to 30 mph with gusts to 35 mph. Chance of rain 90% with rainfall amounts near 0.4 in. possible.
Tuesday
rain Mostly cloudy with rain showers. High of 54F. Windy. Winds from the NNW at 25 to 30 mph with gusts to 40 mph. Chance of rain 60%.
Tuesday Night
nt_chancerain Mostly cloudy with a chance of rain. Low of 46F. Breezy. Winds from the NNW at 10 to 25 mph. Chance of rain 50% with rainfall amounts near 0.2 in. possible.
Wednesday
chancerain Overcast with a chance of rain. High of 59F. Winds from the NNE at 5 to 10 mph. Chance of rain 60% with rainfall amounts near 0.2 in. possible.
Wednesday Night
nt_chancerain Overcast with a chance of rain. Low of 46F. Winds from the East at 10 to 15 mph. Chance of rain 50%.
Thursday
chancerain Overcast with a chance of rain. High of 57F. Winds from the ESE at 10 to 15 mph. Chance of rain 40%.
Thursday Night
nt_partlycloudy Partly cloudy. Low of 48F. Breezy. Winds from the SE at 10 to 20 mph.
Friday
partlycloudy Partly cloudy. High of 70F. Breezy. Winds from the SSE at 15 to 25 mph.
Friday Night
nt_mostlycloudy Mostly cloudy. Low of 54F. Breezy. Winds from the SSE at 15 to 25 mph.
Saturday
partlycloudy Partly cloudy with a chance of a thunderstorm. High of 73F. Winds from the NW at 5 to 10 mph shifting to the ENE in the afternoon. Chance of rain 20%.
Saturday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Low of 59F. Winds from the ESE at 5 to 10 mph shifting to the South after midnight. Chance of rain 60% with rainfall amounts near 0.3 in. possible.
Sunday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 72F. Winds from the South at 5 to 15 mph shifting to the ESE in the afternoon. Chance of rain 70% with rainfall amounts near 0.3 in. possible.
Sunday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Fog overnight. Low of 59F. Winds from the SE at 5 to 15 mph. Chance of rain 30%.
Monday
partlycloudy Clear with a chance of a thunderstorm. High of 72F. Winds less than 5 mph. Chance of rain 20%.
Monday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Low of 57F. Winds less than 5 mph. Chance of rain 30% with rainfall amounts near 0.3 in. possible.
Tuesday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 70F. Winds less than 5 mph. Chance of rain 30%.
Tuesday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 55F. Winds less than 5 mph. Chance of rain 20%.
Wednesday
partlycloudy Partly cloudy. High of 68F. Winds less than 5 mph.
Wednesday Night
nt_clear Clear. Fog overnight. Low of 55F. Winds less than 5 mph.
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Weather Forecast for Keystone SD

View Calendar 10-Day Forecast for station KSDRAPID19

Sunday, 19
Thunderstorm
61 | 46 °F
T-storms
Chance of
Precipitation
90%
Monday, 20
Rain Showers
52 | 46 °F
Rain Showers
Chance of
Precipitation
90%
Tuesday, 21
Rain Showers
54 | 46 °F
Rain Showers
Chance of
Precipitation
60%
Wednesday, 22
Chance of Rain
59 | 46 °F
Chance of Rain
Chance of
Precipitation
60%
Thursday, 23
Chance of Rain
57 | 48 °F
Chance of Rain
Chance of
Precipitation
40%
Friday, 24
Partly Cloudy
70 | 54 °F
Partly Cloudy
Chance of
Precipitation
0%
Saturday, 25
Chance of a Thunderstorm
73 | 59 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Sunday, 26
Chance of a Thunderstorm
72 | 59 °F
Chance of T-storms
Chance of
Precipitation
70%
Monday, 27
Chance of a Thunderstorm
72 | 57 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Tuesday, 28
Chance of a Thunderstorm
70 | 55 °F
Chance of T-storms
Chance of
Precipitation
30%
Source: BestForecast at 7:40 AM MDT on May 19, 2013
Descriptive Forecast
Sunday
tstorms Overcast with thunderstorms and rain showers, then rain showers in the afternoon. High of 61F. Windy. Winds from the NNW at 15 to 30 mph with gusts to 35 mph. Chance of rain 90% with rainfall amounts near 0.9 in. possible.
Sunday Night
nt_tstorms Overcast with thunderstorms and rain showers, then rain showers after midnight. Low of 46F. Windy. Winds from the NNW at 25 to 30 mph with gusts to 40 mph. Chance of rain 80% with rainfall amounts near 1.0 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 57 | 50 61 | 52 55 | 48 52 | 46
Wind 14 mph NNW 21 mph NNW 28 mph North 23 mph NNW
Humidity 74% 70% 77% 85%
Chance of Precip. 90% 90% 90% 80%
Cloud Cover 100% 97% 99% 100%
Conditions Thunderstorm Rain Showers Thunderstorm Rain Showers
Sunrise & Sunset
5:23 AM
8:17 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.64], Average RMSE [1.91]
The National Weather Service forecast quality is good. MaxT RMSE [1.59], Average RMSE [2.10] : Use NWS
Source: BestForecast at 7:40 AM MDT on May 19, 2013
Descriptive Forecast
Monday
rain Overcast with rain showers. High of 52F. Windy. Winds from the NNW at 25 to 40 mph. Chance of rain 90% with rainfall amounts near 0.7 in. possible.
Monday Night
nt_rain Overcast with rain showers. Low of 46F. Windy. Winds from the NNW at 25 to 30 mph with gusts to 35 mph. Chance of rain 90% with rainfall amounts near 0.4 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 54 | 48 52 | 46 52 | 45 52 | 43
Wind 27 mph NNW 29 mph NNW 26 mph NNW 25 mph NNW
Humidity 80% 82% 75% 68%
Chance of Precip. 80% 90% 90% 90%
Cloud Cover 100% 100% 100% 100%
Conditions Rain Showers Rain Showers Rain Showers Rain Showers
Sunrise & Sunset
5:22 AM
8:18 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.62], Average RMSE [2.13]
The National Weather Service forecast quality is good. MaxT RMSE [1.58], Average RMSE [2.58] : Use NWS
Source: BestForecast at 7:40 AM MDT on May 19, 2013
Descriptive Forecast
Tuesday
rain Mostly cloudy with rain showers. High of 54F. Windy. Winds from the NNW at 25 to 30 mph with gusts to 40 mph. Chance of rain 60%.
Tuesday Night
nt_chancerain Mostly cloudy with a chance of rain. Low of 46F. Breezy. Winds from the NNW at 10 to 25 mph. Chance of rain 50% with rainfall amounts near 0.2 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 48 | 43 48 | 43 54 | 41 50 | 43
Wind 29 mph NNW 28 mph NNW 20 mph NNW 12 mph NNW
Humidity 77% 84% 64% 75%
Chance of Precip. 90% 60% 60% 20%
Cloud Cover 89% 90% 86% 84%
Conditions Rain Showers Rain Showers Chance of Rain Chance of Rain
Sunrise & Sunset
5:21 AM
8:19 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.16], Average RMSE [2.55]
The National Weather Service forecast quality is good. MaxT RMSE [2.15], Average RMSE [2.88] : Use NWS
Source: BestForecast at 7:40 AM MDT on May 19, 2013
Descriptive Forecast
Wednesday
chancerain Overcast with a chance of rain. High of 59F. Winds from the NNE at 5 to 10 mph. Chance of rain 60% with rainfall amounts near 0.2 in. possible.
Wednesday Night
nt_chancerain Overcast with a chance of rain. Low of 46F. Winds from the East at 10 to 15 mph. Chance of rain 50%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 50 | 45 59 | 48 57 | 50 48 | 48
Wind 8 mph North 6 mph NE 10 mph ENE 10 mph East
Humidity 83% 66% 72% 99%
Chance of Precip. 30% 30% 20% 20%
Cloud Cover 91% 95% 96% 90%
Conditions Chance of Rain Chance of Rain Chance of Rain Chance of Rain
Sunrise & Sunset
5:20 AM
8:20 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.76], Average RMSE [3.00]
The National Weather Service forecast quality is fair. MaxT RMSE [2.78], Average RMSE [2.78] : Use NWS
Source: BestForecast at 7:40 AM MDT on May 19, 2013
Descriptive Forecast
Thursday
chancerain Overcast with a chance of rain. High of 57F. Winds from the ESE at 10 to 15 mph. Chance of rain 40%.
Thursday Night
nt_partlycloudy Partly cloudy. Low of 48F. Breezy. Winds from the SE at 10 to 20 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 46 | 46 57 | 45 57 | 48 54 | 46
Wind 9 mph East 10 mph ESE 17 mph ESE 13 mph SE
Humidity 94% 61% 70% 79%
Chance of Precip. 20% 20% 10% 10%
Cloud Cover 91% 98% 66% 58%
Conditions Chance of Rain Chance of Rain Mostly Cloudy Partly Cloudy
Sunrise & Sunset
5:19 AM
8:21 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.88], Average RMSE [3.08]
The National Weather Service forecast quality is poor. MaxT RMSE [3.69], Average RMSE [3.72] : Use NWS
Source: BestForecast at 7:40 AM MDT on May 19, 2013
Descriptive Forecast
Friday
partlycloudy Partly cloudy. High of 70F. Breezy. Winds from the SSE at 15 to 25 mph.
Friday Night
nt_mostlycloudy Mostly cloudy. Low of 54F. Breezy. Winds from the SSE at 15 to 25 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 50 | 48 61 | 54 68 | 57 57 | 55
Wind 13 mph SSE 21 mph SSE 22 mph SSE 16 mph South
Humidity 91% 75% 66% 92%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 72% 63% 65% 70%
Conditions Mostly Cloudy Partly Cloudy Mostly Cloudy Mostly Cloudy
Sunrise & Sunset
5:18 AM
8:22 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.40], Average RMSE [3.61]
The National Weather Service forecast quality is poor. MaxT RMSE [5.21], Average RMSE [5.08] : Use NWS
Source: BestForecast at 7:40 AM MDT on May 19, 2013
Descriptive Forecast
Saturday
partlycloudy Partly cloudy with a chance of a thunderstorm. High of 73F. Winds from the NW at 5 to 10 mph shifting to the ENE in the afternoon. Chance of rain 20%.
Saturday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Low of 59F. Winds from the ESE at 5 to 10 mph shifting to the South after midnight. Chance of rain 60% with rainfall amounts near 0.3 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 55 | 54 70 | 54 72 | 59 59 | 57
Wind 5 mph WSW 8 mph NE 9 mph East 8 mph SSE
Humidity 93% 54% 62% 96%
Chance of Precip. 10% 10% 20% 30%
Cloud Cover 96% 53% 54% 93%
Conditions Overcast Partly Cloudy Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:18 AM
8:23 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.55], Average RMSE [5.78]
The National Weather Service forecast quality is poor. MaxT RMSE [5.93], Average RMSE [6.35] : Use NWS
Source: BestForecast at 7:40 AM MDT on May 19, 2013
Descriptive Forecast
Sunday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 72F. Winds from the South at 5 to 15 mph shifting to the ESE in the afternoon. Chance of rain 70% with rainfall amounts near 0.3 in. possible.
Sunday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Fog overnight. Low of 59F. Winds from the SE at 5 to 15 mph. Chance of rain 30%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 59 | 55 72 | 61 72 | 63 59 | 59
Wind 6 mph SW 11 mph ESE 12 mph ESE 4 mph SSE
Humidity 88% 67% 72% 100%
Chance of Precip. 30% 30% 20% 30%
Cloud Cover 92% 79% 82% 73%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:17 AM
8:24 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [6.05], Average RMSE [5.64]
Source: BestForecast at 7:40 AM MDT on May 19, 2013
Descriptive Forecast
Monday
partlycloudy Clear with a chance of a thunderstorm. High of 72F. Winds less than 5 mph. Chance of rain 20%.
Monday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Low of 57F. Winds less than 5 mph. Chance of rain 30% with rainfall amounts near 0.3 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 59 | 59 72 | 55 70 | 52 57 | 54
Wind 2 mph South 1 mph NNW 5 mph NE 3 mph ESE
Humidity 100% 54% 51% 89%
Chance of Precip. 20% 20% 30% 30%
Cloud Cover 72% 41% 11% 32%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:16 AM
8:25 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [7.13], Average RMSE [5.55]
Source: BestForecast at 7:40 AM MDT on May 19, 2013
Descriptive Forecast
Tuesday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 70F. Winds less than 5 mph. Chance of rain 30%.
Tuesday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 55F. Winds less than 5 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 57 | 57 70 | 59 68 | 59 57 | 57
Wind 1 mph NW 3 mph North 5 mph NE 2 mph ESE
Humidity 100% 66% 72% 100%
Chance of Precip. 30% 30% 20% 20%
Cloud Cover 75% 62% 71% 46%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:15 AM
8:26 PM
Source: BestForecast at 7:40 AM MDT on May 19, 2013
Descriptive Forecast
Wednesday
partlycloudy Partly cloudy. High of 68F. Winds less than 5 mph.
Wednesday Night
nt_clear Clear. Fog overnight. Low of 55F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 55 | 55 68 | 59 68 | 61 57 | 57
Wind 2 mph NW 2 mph NNW 3 mph NNE 2 mph SSE
Humidity 100% 69% 79% 100%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 22% 26% 30% %
Conditions Fog Partly Cloudy Partly Cloudy Fog
Sunrise & Sunset
Sun does not rise
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
May 19, 2013 Max Temp Min Temp
Normal (KUNR) 67 °F 46 °F
Record (KUNR) 93 °F (2009) 28 °F (1895)
Yesterday 72 °F 56 °F
Yesterday's Heating Degree Days: 1
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
No recent earthquake activity has been reported nearby.
Minimum magnitude displayed is 2.5.
More information at USGS.gov
Astronomy
May. 19, 2013 Rise Set
Actual Time 5:23 AM MDT 8:17 PM MDT
Civil Twilight 4:49 AM MDT 8:51 PM MDT
Nautical Twilight 4:06 AM MDT 9:34 PM MDT
Astronomical Twilight 3:15 AM MDT 10:25 PM MDT
Moon 2:12 PM MDT 2:00 AM MDT
Length Of Visible Light 16h 02m
Length of Day
14h 54m
Tomorrow will be 1m 58s longer.
Waxing Gibbous, 64% of the Moon is Illuminated
Today
Waxing Gibbous
May 24
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Visit Astronomy
Today's Extremes
State Highs State Lows
73 °F
Sioux Falls
72 °F
Huron
71 °F
Brookings
71 °F
Watertown
69 °F
Mitchell
46 °F
Custer
51 °F
Spearfish
53 °F
Pine Ridge
54 °F
Buffalo
54 °F
Rapid City
Record Extremes
Snow Depth
Station Depth Elevation
North Rapid Creek 0 in 6130 ft
Snow Depth Reports — Snow Depth Map
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Aviation
City Temp. Conditions Updated
Rapid City WFO This station is not reporting.
Rapid City 56 °F Overcast 8:52 AM MDT
Ellsworth AFB 55 °F Light Rain Mist 9:00 AM MDT
Custer 54 °F Mostly Cloudy 8:53 AM MDT
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Flight To ETA Status
No flights were found.
Flight Tracker by FlightAware FlightAware
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Type Condition
Flight Rule: MVFR (KRAP)
Wind Speed: 9.0 kts.
Wind Dir: 305° (NW)
Ceiling: 2300 ft

METAR KRAP 191452Z 33009KT 6SM BR BKN023 OVC030 13/12 A2973 RMK AO2 SLP055 60001 T01330117 58002

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Nearby Events
Event Date Forecast
No events within 10 mi of location. View all events.
Event data courtesy eviesays.com
Sports
Event Date Forecast
Mariners vs. Indians 1:05 PM EDT on May 19, 2013 Partly Cloudy, 74 °F
Blue Jays vs. Yankees 1:05 PM EDT on May 19, 2013 Chance of Rain, 61 °F
Event Date Forecast
Atlético Madrid vs. Celta Vigo 12:00 PM CEST on May 19, 2013 Chance of Rain, High 57° F/ 14° C
Betis vs. Mallorca 12:00 PM CEST on May 19, 2013 Chance of Rain, High 69° F/ 21° C
Event Date Forecast
Coca-Cola 600 6:16 PM EDT on May 26, 2013 Average High 79° F/ 26° C
FedEx 400 benefiting Autism Speaks 1:15 PM EDT on June 02, 2013 Average High 81° F/ 27° C
Event Date Forecast
HP Byron Nelson Championship 8:30 AM CDT on May 19, 2013 Partly Cloudy, 72 °F
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 23, 2013 Partly Cloudy, 67 °F
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Year In Weather 2012

Watch the nearly year-long satellite animation as Weather Underground calls out the most significant weather events of the past year, including Superstorm Sandy and Hurricane Isaac.

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Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Rockerville, Rapid City, SD 55.8 °F - 50 °F 80% NW  at  0.0 mph 0.00 in / hr 4531 ft 8:57 AM MDT Normal  
RAWS BAKER PARK SD, Keystone, SD 55 °F - 49 °F 79% NW  at  4 mph 0.00 in / hr 4673 ft 8:35 AM MDT MADIS
RAWS MT. RUSHMORE SD, Keystone, SD 53 °F - 49 °F 86% ENE  at  2 mph 0.00 in / hr 5399 ft 8:13 AM MDT MADIS
Edinborough, Rapid City, SD 55.4 °F - 52 °F 88% North  at  0.0 mph 0.00 in / hr 3722 ft 9:05 AM MDT Rapid Fire  
Bogus Jim Road, Rapid City, SD 54.7 °F - 50 °F 84% North  at  0.7 mph 0.00 in / hr 4250 ft 9:05 AM MDT Rapid Fire  
nemo rd and norris peak rd, Rapid City, SD 56.7 °F - 49 °F 75% North  at  0.0 mph 0.00 in / hr 4265 ft 9:05 AM MDT Rapid Fire
RAWS CUSTER STATE PARK SD, Fairburn, SD 55 °F - 52 °F 89% NNE  at  5 mph 0.00 in / hr 3950 ft 8:18 AM MDT MADIS
RAWS NEMO SD, Nemo, SD 52 °F - 48 °F 86% NW  at  3 mph 0.00 in / hr 4644 ft 7:57 AM MDT MADIS
Elk Creek Village, Piedmont, SD 55.6 °F - 52 °F 88% North  at  8.0 mph 0.00 in / hr 3576 ft 9:05 AM MDT Rapid Fire  
RAWS PORTABLE FIRE MET 1 SD, Pringle, SD 54 °F - 46 °F 73% West  at  3 mph 0.00 in / hr 5014 ft 8:35 AM MDT MADIS
Bella & Buddy's Dog Leg Meadowbrook Golf, Rapid City, SD 56.7 °F - 52 °F 84% NNW  at  0.0 mph 0.00 in / hr 3346 ft 9:05 AM MDT Rapid Fire  
Spring Creek Acres, Hermosa, SD 59.0 °F - 56 °F 89% SSW  at  0.0 mph 0.00 in / hr 3450 ft 9:05 AM MDT Rapid Fire
MesoWest Rapid City/WFO , Rapid City, SD 57 °F - 54 °F 91% North  at  6 mph 0.00 in / hr 3378 ft 8:32 AM MDT MADIS
Rapid City, SD 56.7 °F - 53 °F 86% NNW  at  0.0 mph 0.00 in / hr 3251 ft 9:00 AM MDT Normal  
APRSWXNET Rapid City SD , Rapid City, SD 56 °F - 51 °F 84% NE  at  3 mph 0.00 in / hr 3264 ft 8:48 AM MDT MADIS
Rapid Valley, Rapid City, SD 56.8 °F - 53 °F 87% NNE  at  1.0 mph - / hr 3240 ft 9:04 AM MDT Normal  
RAWS CUSTER SD, Custer, SD 51 °F - 45 °F 81% SW  at  2 mph 0.00 in / hr 5820 ft 8:24 AM MDT MADIS
HADS RAPID CK BLO SEWAGE PLANT NEAR R SD, Rapid City, SD 57 °F - - - North  at  - 0.00 in / hr 3000 ft 8:00 AM MDT MADIS
Radar Hills, Box Elder, SD 55.7 °F - 53 °F 91% NW  at  8.0 mph 0.00 in / hr 3152 ft 9:04 AM MDT Normal
JoDa's House, Box Elder, SD 56.5 °F - 53 °F 89% WNW  at  9.0 mph 0.00 in / hr 3090 ft 9:00 AM MDT Normal  
MesoWest North side of westbound I90 , Box Elder, SD 55 °F - - - NNW  at  14 mph 0.00 in / hr 3085 ft 8:25 AM MDT MADIS
Prairie View Estates, Box Elder, SD 56.3 °F - 55 °F 94% NW  at  7.0 mph 0.00 in / hr 3064 ft 9:05 AM MDT Rapid Fire  
Elk Creek Ranchettes #2, Piedmont, SD 55.3 °F - 53 °F 92% West  at  13.0 mph 0.00 in / hr 3225 ft 9:05 AM MDT Rapid Fire
HADS DEERFIELD RESERVOIR NEAR ROCHFOR SD, Hill City, SD 48 °F 48 °F - - North  at  - 0.00 in / hr 5908 ft 8:00 AM MDT MADIS
RAWS BKF3 PORTABLE SD, Hill City, SD 47 °F 45 °F 42 °F 82% NNW  at  4 mph 0.00 in / hr 6629 ft 8:36 AM MDT MADIS
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